I do care about monetary inflation, which is more important for me as a stock market investor. The MZM aggregate (Money Zero Maturity) is the most relevant measure of liquid money in the US economy. As such, it is critically important for the corporate profit level and the stock market valuation.
If you multiply MZM by 0.13 you will obtain the long-term trend of the US Corporate Profits growth. This is more useful than Shiller's ten year moving profit averages.